Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near national median SD
Illinois bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Illinois — drawn straight from the FHWA National Bridge Inventory.
- 27,743
- Public bridges
- 41.2%
- Good condition
- 7.9%
- Poor condition
- 7.9%
- Structurally deficient
Good Condition
41.2%
11,426 bridges rated 7-9
-8.8pp vs 50% benchmark
Poor Condition
7.9%
2,186 bridges rated 0-4
Structurally Deficient
7.9%
2,186 bridges flagged for repair priority
0.9pp vs national avg 7.0%
Illinois vs national bridge condition
Illinois — Good condition share 41.2%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Illinois — Structurally deficient share 26.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Illinois (FHWA NBI)
Counties (102)
Adams 325 Alexander 96 Bond 165 Boone 111 Brown 71 Bureau 382 Calhoun 81 Carroll 185 Cass 77 Champaign 743 Christian 323 Clark 232 Clay 171 Clinton 187 Coles 308 Cook 2185 Crawford 196 Cumberland 169 De Witt 197 DeKalb 264 Douglas 234 DuPage 380 Edgar 278 Edwards 79 Effingham 260 Fayette 356 Ford 300 Franklin 323 Fulton 210 Gallatin 82 Greene 166 Grundy 269 Hamilton 164 Hancock 291 Hardin 58 Henderson 144 Henry 331 Iroquois 565 Jackson 235 Jasper 180 Jefferson 270 Jersey 111 Jo Daviess 198 Johnson 120 Kane 354 Kankakee 352 Kendall 133 Knox 321 LaSalle 529 Lake 286 Lawrence 183 Lee 372 Livingston 578 Logan 296 Macon 368 Macoupin 248 Madison 543 Marion 301 Marshall 153 Mason 85 Massac 138 McDonough 210 McHenry 229 McLean 624 Menard 90 Mercer 162 Monroe 130 Montgomery 261 Morgan 241 Moultrie 171 Ogle 377 Peoria 365 Perry 139 Piatt 249 Pike 338 Pope 86 Pulaski 106 Putnam 50 Randolph 155 Richland 147 Rock Island 256 Saline 176 Sangamon 480 Schuyler 121 Scott 96 Shelby 330 St. Clair 502 Stark 89 Stephenson 332 Tazewell 361 Union 192 Vermilion 515 Wabash 88 Warren 202 Washington 232 Wayne 264 White 210 Whiteside 280 Will 674 Williamson 204 Winnebago 475 Woodford 222
Illinois vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Illinois on the same metric.
44
Rhode Island
7.69% top marginal rate
31
Nebraska
7.73% top marginal rate
17
Illinois
7.88% top marginal rate
25
Massachusetts
7.96% top marginal rate
29
Missouri
8.53% top marginal rate
Bridges Needing Most Attention in Illinois
Six lowest-condition bridges in Illinois, ranked by composite NBI rating. Each is inspected at least every 24 months.
FAS 1599
PoorOver: DRAINAGE CANAL
2.2 MI E MEYER, Adams, IL
Built 1980 Load: 0.6 t ADT: 200
CH 15
PoorOver: E FK MAZONRIVER
0.05 MI W CH 16, Grundy, IL
Built 1977 Load: 1.0 t ADT: 1,400
MOOSE RD - TR 240
Structurally DeficientOver: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Built 1935 Load: 1.3 t ADT: 10
TR 10-B
Structurally DeficientOver: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Built 1899 Load: 1.6 t ADT: 10
TR-6
Structurally DeficientOver: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Built 1909 Load: 1.6 t ADT: 25
TR208K(TWIN BRIDGE
Structurally DeficientOver: BIG CREEK
NE EDGE MT ZION, Macon, IL
Built 1967 Load: 1.9 t ADT: 375
All Bridges in Illinois
US 6
PoorOver: DES PLAINES RIVER
0.25 M W IL 53, Will, IL
Built 1934 Load: 42.4 t ADT: 9,800
BENEDICT ST
PoorOver: SENACHWINE CREEK
NW QTR 17 CHILLICOTH, Peoria, IL
Built 1979 Load: 42.8 t ADT: 275
SOUTH ST(FAU 7007)
PoorOver: STONY CREEK
SE SIDE DANVILLE, Vermilion, IL
Built 1959 Load: 42.8 t ADT: 800
US 67
PoorOver: MACOUPIN CREEK
4.8 M S JCT 108-67, Greene, IL
Built 1969 Load: 43.1 t ADT: 4,750
FAI-57 SB
PoorOver: Louis Creek
7.33 M S ONARGA INT, Iroquois, IL
Built 1968 Load: 43.1 t ADT: 8,750
TR 478 11E
PoorOver: BUCKHART CREEK
4.5 E ROCHESTER, Sangamon, IL
Built 1958 Load: 43.4 t ADT: 325
IL 7 SOUTHWEST H
PoorOver: CAL SAG CHANNEL
0.5 M NE IL 83, Cook, IL
Built 1931 Load: 43.7 t ADT: 25,400
FAI 57 NB
PoorOver: Louis Creek
7.33 M S ONARGA INT, Iroquois, IL
Built 1968 Load: 43.7 t ADT: 8,750
ILL 78
PoorOver: SPOON RIVER
3 MI N OF LAURA, Peoria, IL
Built 1927 Load: 43.7 t ADT: 2,450
BAUER RD
PoorOver: TERRY CREEK
2.5 W. ILL 113, Will, IL
Built 1975 Load: 43.7 t ADT: 175
FAS 452-CH 2
PoorOver: SPOON RIVER
AT BERNADOTTE, Fulton, IL
Built 1983 Load: 44.1 t ADT: 375
CH 2
PoorOver: MAUVAISE TERRE CR
E EDGE JACKSONVILLE, Morgan, IL
Built 1959 Load: 44.1 t ADT: 250
ELVA RD
PoorOver: S BR KISHWAUKEE RV
1600N 710E, DeKalb, IL
Built 1961 Load: 44.4 t ADT: 75
N. SCOUT CAMP ROAD
PoorOver: BR. OF APPLE RIVER
7.5 MI S APPLE RIVER, Jo Daviess, IL
Built 1988 Load: 44.4 t ADT: 150
JONATHAN AVE
PoorOver: NW DRAINAGEWAY
0.1 MI E OF ROCKTON, Winnebago, IL
Built 1962 Load: 44.4 t ADT: 200
IL 171 SB RMP I-55
PoorOver: DES PLAINES RIVER
1.5 M SW IL 43, Cook, IL
Built 1964 Load: 45.0 t ADT: 10,600
TR 39
PoorOver: TOWER CREEK
3.5 MI SE WHITAKER, Kankakee, IL
Built 1977 Load: 45.0 t ADT: 75
FAS 631-CTY HWY 31
PoorOver: WOLF CREEK
0.5 N OF SPAULDING, Sangamon, IL
Built 1985 Load: 45.0 t ADT: 1,700
FAU 7182(BROADWAY)
PoorOver: SALINE BRANCH
N OF UNIVERSITY AVE, Champaign, IL
Built 1982 Load: 45.4 t ADT: 4,250
US 12
PoorOver: NIPPERSINK CR OVERFL
0.3 M N OF CO LINE, McHenry, IL
Built 1939 Load: 45.7 t ADT: 11,500
CH 1 LOST NATION R
PoorOver: FRANKLIN CREEK
0.8 MI S OF OGLE CO, Lee, IL
Built 1957 Load: 46.0 t ADT: 1,900
MAPLE GROVE RD/TR2
PoorOver: WENDALL BR
2.0 MI N TROY, Madison, IL
Built 1978 Load: 46.0 t ADT: 1,050
LASALLE BLVD
PoorOver: LITTLE LICK CREEK
1000 FT E OF ILL 29, Tazewell, IL
Built 1948 Load: 46.0 t ADT: 2,800
US 67
PoorOver: MIDDLE HEND'N CR
0.8 MI S OF ILL 135, Warren, IL
Built 1954 Load: 46.0 t ADT: 2,250
IL 92 FAP 587
PoorOver: GREEN RIVER
1.4 MI W JCT ILL 40, Bureau, IL
Built 1958 Load: 46.7 t ADT: 600
143RD ST
PoorOver: BR OF TINLEY CREEK
0.75 W CENTRAL P3, Cook, IL
Built 1931 Load: 47.0 t ADT: 14,300
TR-2601 Main St
PoorOver: Squaw Creek
2.5MI W US12 N.IL134, Lake, IL
Built 1900 Load: 47.0 t ADT: 1,600
N SIU ENT RD NB
PoorOver: NSRR
1mi S of IL 143, Madison, IL
Built 1968 Load: 47.0 t ADT: 2,775
N SIU ENT RD SB
PoorOver: NSRR
1mi S of IL 143, Madison, IL
Built 1968 Load: 47.0 t ADT: 2,775
SB I-155
PoorOver: INDIAN CREEK
.5 MI S 155&122 INT, Tazewell, IL
Built 1971 Load: 47.0 t ADT: 5,900
I- 55 EB STEVENSON
PoorOver: RR - BNSF
0.6 M E US 45, Cook, IL
Built 1964 Load: 47.3 t ADT: 61,500
TR 59
PoorOver: CABINESS CREEK
2.5MI SW GREENVIEW, Menard, IL
Built 1900 Load: 47.3 t ADT: 50
I-55/64 WB CD R-LI
PoorOver: UPRR
PIER G1 TO PIER A21, St. Clair, IL
Built 1969 Load: 47.6 t ADT: 8,350
AUBURN ST.
PoorOver: KENT CREEK
0.1 MI W OF KILBURN, Winnebago, IL
Built 1930 Load: 47.6 t ADT: 12,400
BELMONT AVE
PoorOver: N BR CHGO RVR
3200 N & 2600 W, Cook, IL
Built 1976 Load: 48.0 t ADT: 17,800
FAU 7454(CH 25)
PoorOver: SANGAMON R OVERFLOW
3.1 MI N OF OAKLEY, Macon, IL
Built 1995 Load: 48.0 t ADT: 1,300
US 150
PoorOver: POPE CR
2 M S OF ILL 17, Knox, IL
Built 1951 Load: 48.3 t ADT: 2,350
ILL 154
PoorOver: BEAUCOUP CREEK
E OF PINCKNEYVILLE, Perry, IL
Built 1962 Load: 48.3 t ADT: 5,750
CH 3
PoorOver: WALNUT CREEK
2.5 MI NW CRUGER, Woodford, IL
Built 1991 Load: 48.6 t ADT: 250
CH 52
PoorOver: LITTLE INDIAN CREEK
E. 1950 TH N 4775, LaSalle, IL
Built 1992 Load: 49.6 t ADT: 850
RIVERSIDE ISLAND D
PoorOver: NIPPERSINK LAKE
0.5 MI E US12, Lake, IL
Built 1998 Load: 49.9 t ADT: 125
IL 40 FAP 646
PoorOver: HENNEPIN CANAL
0.4 MI S JCT FAI 80, Bureau, IL
Built 1933 Load: 50.5 t ADT: 2,400
I- 80 WB
PoorOver: HICKORY CREEK
0.3 M E OF IL-53, Will, IL
Built 1965 Load: 50.9 t ADT: 45,600
CHARTER OAK ROAD
PoorOver: BR KICKAPOO CREEK
S CTR 15 KICKAPOO, Peoria, IL
Built 1963 Load: 51.2 t ADT: 2,000
TR 1 B
PoorOver: HACKETT BRANCH
1.5 MI NE OF HAYES, Champaign, IL
Built 1981 Load: 51.5 t ADT: 25
FAS 882
PoorOver: LIMEKILN CREEKM
6.3 MI E SPRINGERTON, White, IL
Built 2000 Load: 51.8 t ADT: 50
E STAGECOACH ROAD
PoorOver: APPLE RIVER
1 MILE W APPLE RIVER, Jo Daviess, IL
Built 1937 Load: 52.5 t ADT: 575
TR 261(BLUE MOUND
PoorOver: DRY BRANCH
2.8 MI W OF MACON, Macon, IL
Built 1973 Load: 52.5 t ADT: 275
OLD RT 66 NB/FAS 2
PoorOver: MAZON RIVER
3.19 MI N ODELL RD, Livingston, IL
Built 1954 Load: 52.8 t ADT: 1,550
TR 424
PoorOver: HONEY CREEK
6 MI N EAGARVILLE, Macoupin, IL
Built 1994 Load: 53.5 t ADT: 20
Showing 26,951-27,000 of 27,743 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |